Specification: Part Number 1026139 Thread diameter (housing): M18 x 1 Sensor/detection principle: Through-beam photoelectric sensor Optics material: PMMA Ambient operating temperature: -25 ... 55 °C Housing material: ABS, Plastic Optical axis: Axial Angle of dispersion: Ca. 1.5 ° Signal voltage NPN HIGH / LOW: Uv / < 2,9 V Wave length: 650 nm Output current Imax.: 100 Type of light: Visible red light Response time: ≤ 1.4 ms UL File No.: NRKH.E189383 & NRKH7.E189383 Protection class: III Housing design (light emission): Cylindrical, straight Housing length: 36.8 mm Light source: LED Power consumption: 30 Part number of individual components: Receiver, MHE15-N3236, 2031148, Sender, MHS15-D3036, 2031164 Switching frequency: 350 Light spot size (distance): Ø 65 mm (4 m) Weight: 7 g Enclosure rating: IP 67 IP 69K Switching output: NPN Ambient storage temperature: -25 ... 70 °C Circuit protection: A, C, D Switching mode: Dark switching Connection type: Connector M12, 3-pin Supply voltage: 10 V DC ... 30 Sensing range: 0 m ... 3.8 m Sensing range max.: 0 m ... 5 m